Silicon core polishing equipment

Abstract

The utility model relates to the technical field of grinding equipment, in particular to silicon core grinding equipment which comprises a grinding machine body and a grinding head, a frustum-shaped grinding cavity is formed in the grinding head, a first grinding area is arranged on the end face of an opening of the grinding cavity, and a second grinding area is arranged on the inner side wall of the grinding cavity. The roughness of the first grinding area is larger than that of the second grinding area, the first grinding area adopts 60-80-mesh coarse carborundum, the second grinding area adopts 100-120-mesh carborundum, and the two grinding areas adopt a sand plating process to spray grinding surfaces, so that the grinding force of the end face of the grinding head can be guaranteed, and the smoothness requirement of a silicon core frustum or a circular truncated cone can be guaranteed; on the premise of meeting production standards, loss of the grinding head is reduced, and the service life of the grinding head is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding equipment, in particular to a device for grinding the end of a square silicon core. Background Art

[0002] The internal grinding heads currently used use diamond sand of the same grain size sintered on the inner hole and end face to grind the frustum or truncated table of the silicon core. During the use of the grinding head, the grinding force of the diamond sand on the end face is often insufficient. If the grinding head is not replaced in time, continued use will cause the tool to retreat, resulting in insufficient length of the finished grinding cone. Frequent replacement of the grinding head will reduce production efficiency and increase the cost of equipment use. Utility Model Content

[0003] The utility model aims to overcome the deficiencies in the prior art and provide a silicon core grinding device which can ensure the grinding force of the end face of the grinding head and the smoothness requirements of the silicon core frustum or truncated cone.

[0004] The utility model is realized through the following technical scheme: a silicon core grinding device, comprising a grinder body and a grinding head, wherein a frustum-shaped grinding chamber is arranged in the grinding head, a first grinding area is arranged on the end face at the opening of the grinding chamber, a second grinding area is arranged on the inner side wall of the grinding chamber, and the roughness of the first grinding area is greater than the roughness of the second grinding area.

[0005] Furthermore, a water injection channel communicating with the grinding chamber is provided at the center of the grinding head, and a water guide hole extending to the second grinding area is provided on the first grinding area.

[0006] Furthermore, the grinder body includes a base, a first driving source is arranged on the base, a transmission spindle is arranged at the output end of the first driving source, and an adapter for installing a grinding head is arranged at the end of the transmission spindle.

[0007] Furthermore, the first driving source is slidably connected to the base, and one end of the base is provided with a second driving source for driving the first driving source to move axially.

[0008] Furthermore, the adapter includes an adapter plate connected to the transmission main shaft, a plug-in portion connected to the transmission main shaft is provided on one side of the adapter plate, and a clamping portion for installing a grinding head is provided on the side wall on the other side, and cooling water holes connected to the water injection channel are provided in the middle of the transmission main shaft and the adapter.

[0009] Furthermore, a clamping chamber is provided on the clamping portion, and the clamping chamber is detachably connected to the grinding head.

[0010] Furthermore, a frustum-shaped guide chamber is provided at the front end of the clamping chamber, and the guide chamber extends inward from the opening and its diameter gradually decreases.

[0011] The beneficial effect of the utility model is that the silicon core grinding equipment comprises a grinder body and a grinding head, a frustum-shaped grinding chamber is opened in the grinding head, a first grinding area is arranged on the end face at the opening of the grinding chamber, a second grinding area is arranged on the inner wall of the grinding chamber, the roughness of the first grinding area is greater than that of the second grinding area, 60-80 mesh coarse corundum is used in the first grinding area, and 100-120 mesh corundum is used in the second grinding area, and the sand plating process is adopted for spraying the grinding surface of the two grinding areas, which can not only ensure the grinding force of the end face of the grinding head, but also ensure the smoothness requirements of the silicon core frustum or cone, reduce the loss of the grinding head while meeting the production standards, and improve the service life of the grinding head. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the installation structure of the grinding head in the utility model;

[0014] Figure 3 It is a schematic diagram of the mechanism of the grinding head in the utility model;

[0015] Figure 4 It is a cross-sectional view of the grinding head in the utility model.

[0016] Among them: 1-grinding head; 2-first grinding area; 3-second grinding area; 4-water injection channel; 5-water guide hole; 6-base; 7-first driving source; 8-transmission main shaft; 9-adapter; 10-second driving source; 11-adapter plate; 12-plug-in part; 13-clamping part; 14-cooling water hole; 15-clamping chamber; 16-water guide groove. DETAILED DESCRIPTION

[0017] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example 1

[0020] like Figure 1-4 As shown, a silicon core grinding device includes a grinder body and a grinding head 1, a frustum-shaped grinding chamber is opened in the grinding head 1, a first grinding area 2 is arranged on the end face of the opening of the grinding chamber, a second grinding area 3 is arranged on the inner wall of the grinding chamber, the roughness of the first grinding area 2 is greater than that of the second grinding area 3, the first grinding area 2 uses 60-80 mesh coarse corundum, and the second grinding area 3 uses 100-120 mesh corundum, and the two grinding areas are sprayed with sand plating technology to ensure the grinding force of the end face of the grinding head 1, and the smoothness requirements of the silicon core frustum or cone, reduce the loss of the grinding head 1 while meeting the production standards, and improve the service life of the grinding head 1.

[0021] A water injection channel 4 connected to the grinding chamber is provided at the center of the grinding head 1, a water guide hole 5 extending to the second grinding area 3 is provided on the first grinding area 2, and a water guide groove 16 is provided on the side wall of the second grinding area 3. The water guide hole 5 is connected to the water guide groove 16. The diameter of the water guide hole 5 is 2 mm. The water guide hole 5 is opened inward from the end surface of the first grinding area 2. The water guide hole 5 is connected to the grinding chamber. There are multiple groups of water guide holes 5, each group includes two symmetrically distributed water guide holes 5 to avoid pressure imbalance on both sides of the grinding head 1 due to water pressure during the water injection process.

[0022] The grinder body includes a base 6, on which a first driving source 7 is provided, a transmission spindle 8 is installed at the output end of the first driving source 7, an L-shaped mounting frame is installed on the base 6, the first driving source 7 is installed at the lower part of the L-shaped driving frame, and the transmission spindle 8 is installed at the upper part of the L-shaped mounting frame. The first driving source 7 and the transmission spindle 8 are linked by a belt, and a rotating joint for connecting a cooling water source is connected to the front end of the transmission spindle 8, and an adapter 9 for installing a grinding head 1 is provided at the end of the transmission spindle 8. The grinding head 1 is detachably connected to the transmission spindle 8 through the adapter 9, which facilitates the replacement and installation of the grinding head 1 and can avoid damage to the transmission spindle 8 due to the deflection of the grinding head 1 during the grinding process.

[0023] The first driving source 7 is slidably connected to the base 6, and one end of the base 6 is provided with a second driving source 10 for driving the first driving source 7 to move axially. The lower part of the L-shaped mounting frame is slidably connected to the base 6, and the second driving source 10 drives the L-shaped driving frame to slide on the base 6 along the length direction of the base 6. The axial position of the grinding head 1 can be adjusted by the second driving source 10, and a forward thrust is applied to the grinding head 1 during the grinding process.

[0024] The adapter 9 includes an adapter plate 11 connected to the transmission spindle 8. The adapter plate 11 is fitted onto the transmission spindle 8 and fixed by bolts. A plug-in portion 12 connected to the transmission spindle 8 is provided on one side of the adapter plate 11, and a clamping portion 13 for mounting the grinding head 1 is provided on the side wall on the other side. The plug-in portion 12 is frustum-shaped, and its diameter gradually decreases as it extends from the adapter plate 11 into the transmission spindle 8, which can play a guiding role during insertion. A cooling water hole 14 connected to the water injection channel 4 is provided in the middle of the transmission spindle 8 and the adapter 9. After the cooling water enters from the rotary joint, it flows along the cooling water hole 14 to the first grinding area 2 and the second grinding area 3.

[0025] A clamping chamber 15 is formed on the side wall of the clamping portion 13 , and the clamping chamber 15 is detachably connected to the grinding head 1 via threads.

[0026] A frustum-shaped guide chamber is provided at the front end of the clamping chamber 15, and the diameter of the guide chamber gradually decreases as it extends inward from the opening. A frustum-shaped guide portion is also provided on the grinding head 1 body. During installation, the guide portion enters first and then plays a guiding role, which facilitates the installation of the grinding head 1.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A silicon core grinding device, comprising a grinding machine body and a grinding head, characterized in that: A frustum-shaped grinding chamber is arranged in the grinding head, a first grinding area is arranged on the end face of the opening of the grinding chamber, a second grinding area is arranged on the inner side wall of the grinding chamber, and the roughness of the first grinding area is greater than that of the second grinding area.

2. A silicon core polishing device according to claim 1, characterized in that: A water injection channel communicating with the grinding chamber is arranged at the center of the grinding head, and a water guide hole extending to the second grinding area is arranged on the first grinding area.

3. A silicon core polishing device according to any one of claims 1-2, characterized in that: The grinder body comprises a base, a first driving source is arranged on the base, a transmission main shaft is arranged at the output end of the first driving source, and an adapter for mounting a grinding head is arranged at the end of the transmission main shaft.

4. A silicon core polishing device according to claim 3, characterized in that: The first driving source is slidably connected to the base, and one end of the base is provided with a second driving source for driving the first driving source to move axially.

5. The silicon core polishing device according to claim 3, characterized in that: The adapter includes an adapter plate connected to the transmission main shaft, a plug-in portion connected to the transmission main shaft is provided on one side of the adapter plate, and a clamping portion for installing a grinding head is provided on the side wall on the other side, and cooling water holes connected to the water injection channel are provided in the middle of the transmission main shaft and the adapter.

6. The silicon core polishing device according to claim 5, characterized in that: The clamping portion is provided with a clamping chamber, and the clamping chamber is detachably connected to the grinding head.

7. The silicon core polishing device according to claim 6, characterized in that: A frustum-shaped guide chamber is provided at the front end of the clamping chamber, and the guide chamber extends inward from the opening and its diameter gradually decreases.

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